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The aim of this study was to determine association between constitutional, medical history and axiographic parameters with postural control parameters. Overall, 106 healthy female subjects aged between 21 and 30 years were measured. Data collection was carried out by completing a questionnaire on constitutional parameters, illnesses, accidents and medical/orthodontic therapies, as well as by axio- and posturographic measurements. Data were analyzed using correlations, pair comparisons and group comparisons. The significance level was set at p ≤ 0.05. The statistical evaluation showed significant correlations between sporting exercise and body sway in the sagittal direction (p ≤ 0.03), the BMI and the load on the forefoot/rear foot (p ≤ 0.01), the mouth opening and the load on the forefoot/rearfoot (p ≤ 0.01) and the presence of a deviation with the load on the left/right foot (p ≤ 0.01). The physical condition as well as the temporo-mandibular system are associated with the postural control in young women. Therefore, a holistic diagnosis and therapy will be supported by the present outcomes.
Background: The aim is to investigate to what extent the different oral protections compared to the habitual occlusion affect the upper body posture in statics and during taekwondo-specific movement.
Methods: 12 Taekwondoka (5 f/7 m) of German national team were measured by using a 3d back scanner and an ultrasonic distance measuring (upright stand, taekwondo attack and defense movement, two taekwondo specific combinations) in habitual occlusion, with a custom-made and ready-made mouth protection
Results: There are no significant changes in the upper body posture (p ≥ 0.05). Depending on the dynamic measurements, different significant reactions of the spinal position were found while wearing the custom made mouthguard or the ready-made mouthguard according to the conducted movement.
Conclusion: The measured changes in dynamic movements are not clinical relevant. Based on the positive responses from the participants, the custom-made mouth protection can be recommended combined with an individual analysis.
Background: Effects of playing high stringed bow instruments on the upper body posture have not been analysed so far. The instrument-specific seating position when playing in an orchestra is compared to the habitual seating position.
Methods: Three dimensional back scans were performed in 13 professional violinists and viola players of a radio orchestra (8 f / 5 m). Trunk position in their habitual seating position and in the instrument- specific seating position imitating playing was compared. Statistical differences were calculated using Wilcoxon Matched Pairs Test with Bonferroni Holm correction.
Results: Significant differences were found between the seated position with instrument and without (p < 0.001, 0.03, 0.02 or 0.01) in the spine (trunk length, sagittal trunk decline, lumbar bending angle, maximal rotation, standard deviation rotation, lumbar lordosis), the shoulder (scapula distance, scapula rotation, scapula angle right) and pelvis distance.
Conclusions: Playing an instrument changes the static seating position by increased rotation of the spine and specific shoulder adaptations holding the instrument (left arm) and the bow (right arm), with minor effects on the pelvis. This forced position may result in chronic health effects. The method used in this study is an approach to better understand the involved muscular structures and possible resulting health damages.
Zielsetzung. Diese Pilotstudie untersucht den therapeutischen Effekt des RelaxBogens in Bezug auf Bruxismus und Symptome einer kraniomandibulären Dysfunktion (CMD).
Probanden und Methoden. Untersucht wurde eine Gruppe von 10 Probanden. Auswahlkriterien waren ein vorliegender Bruxismus und erste Symptome einer CMD. Dies wurde durch die Anwendung einer Brux-Checker®-Folie für 2 Nächte und eine Schmerzanamnese verifiziert. Eingangs wurden neben einer ausführlichen zahnärztlichen Anamnese folgende CMDParameter erhoben: SL-NRS-Fragebogen sowie Palpation von 42 Muskeln im Kopf-HalsNacken-Bereich und der 6 Austrittspunkte des N. trigeminus. Nach der Voruntersuchung wurde der RelaxBogen mindestens 10 Wochen getragen. Danach wurden die genannten Parameter erneut erhoben und miteinander verglichen.
Ergebnisse. Die Vor- und Nachuntersuchungen zeigten starke Tendenzen der Reduktion sowohl der allgemeinen Symptomatik als auch der Schmerzempfindung im Kieferbereich. Nach dem Tragen des RelaxBogens konnte eine eindeutige Reduktion des durch Palpation ausgelösten, muskulären Schmerzes beobachtet werden. Ebenfalls deutlich positive Tendenzen ließen sich bei der Verbesserung des allgemeinen Wohlbefindens finden. Die Ergebnisse legen nahe, dass bei einer größeren Stichprobe eine statistische Signifikanz zu erwarten ist.
Schlussfolgerung. Der RelaxBogen führt nach den Ergebnissen dieser Pilotstudie bei Patienten, die unter Bruxismus- und CMD-Symptomen leiden, zu einer deutlichen Reduktion der Schmerzwahrnehmung sowie einer eindeutigen Steigerung des Wohlbefindens. Neben der Verringerung des Schmerzempfindens und einem reduzierten Spannungsgefühl in den großen Kiefermuskeln konnten auch positive Tendenzen im Bereich der Hals-, Nacken- und Schultermuskulatur festgestellt werden.
The aim of this study was to investigate gender-specific influences of different symmetric and asymmetric occlusion conditions on postural control during standing and walking. The study involved 59 healthy adult volunteers (41 f/19 m) aged between 22 and 53 years (30.2 ± 6.3 years). Postural control measurements were carried out using a pressure plate by measuring plantar pressure distribution during standing and walking test conditions. Seven different occlusion conditions were tested. Prior to a MANOVA model analysis, the relationship between the two test conditions were checked using a factor analysis with a varying number of factors (between 2 and 10). The plantar pressure distributions during walking and standing are independent test conditions. The coefficient of variance across all variables between the conditions and genders was not significant: t(46) = 1.51 (p = 0.13). No statement can be made whether, or not, the influence of gender is greater than the influence of the conditions. Healthy male and female test subjects did not show any difference between seven occlusion conditions on the plantar pressure distribution while standing or walking. No differences between the genders were found for any of the investigated variables. In contrast to custom-made occlusion splints, simple cotton rolls appear not to influence the neuromuscular system in a systematic manner.